The American airports of tomorrow are being built today as ongoing projects take shape to handle an increasing number of fliers. Around the country, projects are being considered, underway or nearing completion as travelers from around the world make their way to the United States.

As reported by Aviation Pros, the Port Authority of New York and New Jersey’s nearly $350 million comprehensive modernization project at Newark Liberty International Airport Terminal B is nearing completion with the final phase slated to start in May.

“When people from across the globe arrive at Newark, they should find an airport welcome second to none,” says Deputy Executive Director Bill Baroni. “The Port Authority is fulfilling our commitment to making Newark Liberty Airport one of the world’s best.”

Improvements to the international arrivals area include consolidating lost baggage offices, relocating the ground transportation desk to a more convenient location and improving travelers’ aid and concession spaces. Additionally, there will be upgrades to the public address, signage, escalator, alarm and fire protection as well as the heating and air-conditioning systems.

Work is also underway on a $1.2 billion enhancement and expansion of Delta’s facilities at New York’s John F. Kennedy Airport reports Travel Daily news. That expansion brings a new Delta Sky Club in Terminal C, due to open this summer, and the Delta Sky Club in Terminal D will undergo an expansion.Delta will also increase service at LaGuardia by 60 percent, adding 4 million seats into New York, with 100 new flights and 26 more new destinations coming on line by summer 2012. As reported by Forbes, when its full schedule is implemented by this summer, Delta will run more than 260 daily flights to over 60 cities, more than any other carrier.

“All together, with our expansion projects at JFK and LaGuardia, Delta is investing nearly $1.4 billion in our New York airport facilities,” said Delta Chief Executive Officer Richard Anderson. “No other airline is approaching that level of commitment to New York in the next 12 months.”

It’s big money and not just on the East Coast. Los Angeles International Airport marked a milestone in its modernization program late last month, dedicating the renovation of Terminal 6, a new home for Alaska Airlines. The $238-million project includes a variety of improvements to bag checking, ticketing, security screening, waiting areas at gates and more.

These new facilities might not be waiting for long to handle increased traffic and pay back those investments.

In Texas, two studies were done to evaluate the economic impact on the city from Southwest’s international flights. They found the potential for an additional 1.5 million passengers to, from and through Houston per year. The increase would create more than 10,000 jobs and an annual economic impact of more than $1.6 billion.

Think US airports have high ambitions? Dubai International is already the world’s fourth busiest airport in terms of passenger traffic, but wants more too.